Flicker, stumble, dead. - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 04-09-2010, 03:10 PM
n00b
 
Join Date: Jan 2006
Location: Jacksonville, Florida
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Raymond is on a distinguished road
(Thread Starter)
Flicker, stumble, dead.

I have an '89 325i vert. I've had it about two years. Car has been as dependable as sunrise. Yesterday while driving home at highway speed, the water temp gauge started to flick back and forth violently, and intermittently. It would waver franticly from off to just a tick above normal and settle to normal, then do it again and again irregularly. Engine was running fine.

When I got to surface roads and stopped at a traffic light, the gauge was stable and all seemed normal until I tried to accelerate away. The car burbled and seemed starved for power until above 1200 RPM and then seemed fine. It ran normally in traffic. However, I found I had to keep the revs over 1500 while engaging the clutch or the car would stumble. It was all fine with higher RPM. Check of coolant level in the car was fine. Thermostat is about 9 months old.

This morning, it started right up but the idle seemed a bit rough and cycled up and down irregularly from about 800 to 1100 RPM. the green double arrow idiot light on the bottom row was flashing. I shut off the engine and checked for loose leads or air filter obstructions and found none. Then the car would not fire. Plenty of cranking, but not a hint of fire.

Where should I start looking? What is the green double arrow light? I've never seen it light up before.
Raymond is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 04-10-2010, 01:00 PM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
when was last tune up? Or last service?
darkhorse737 is offline  
#3 (permalink) Old 04-10-2010, 06:01 PM
n00b
 
Join Date: Jan 2006
Location: Jacksonville, Florida
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Raymond is on a distinguished road
(Thread Starter)
The odometer died more than two years ago, so I do the oil every 4 months and all the other fluids and filters in the fall. The spark plugs look okay and the gap is normal. I'll change them tomorrow. Air filter is still clean. I replaced the radiator and thermostat last summer. I have other cars so I was averaging about 11K miles per year in the daily driver.

I'm thinking the ECU may have stopped thinking.
Raymond is offline  
#4 (permalink) Old 04-10-2010, 08:22 PM
You Can Has A Custom Title!!
 
german-speed-demon's Avatar
 
Join Date: Feb 2005
Posts: 8,829
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
ECu, coilpack, wires, bad ground. pretty much in that order. check em and trace them until you have power to your plugs.

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
german-speed-demon is offline  
#5 (permalink) Old 04-11-2010, 07:30 PM
n00b
 
Join Date: Jan 2006
Location: Jacksonville, Florida
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Raymond is on a distinguished road
(Thread Starter)
Okay, riddle me this. Apart from looking at the spark plugs I didn't do anything and the car is back to normal. That worries me. Intermittent problems are the worst.

Leads me to further suspect the ECU, but the coil pack is a really good thought. Thanks.
Raymond is offline  
#6 (permalink) Old 04-11-2010, 08:16 PM
You Can Has A Custom Title!!
 
german-speed-demon's Avatar
 
Join Date: Feb 2005
Posts: 8,829
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
anytime sir. it's what we're here for

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
german-speed-demon is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
lites flicker and rough idle STEPHEN WILKERSON 3-Series (E36) 13 09-23-2009 02:14 PM
dead battery and dead key.. cant get in trunk to jump car richmond3h 3-Series (E36) 4 03-29-2009 08:35 PM
Stumble on acceleration seven 3-Series (E36) 10 05-27-2007 09:57 PM
engine stumble fastshivy 5-Series (E12,E28, E34, E39, E60) 11 08-21-2006 10:03 AM
8 Series Stumble slickone 1,6,7,8 - Series and Mini Cooper 4 03-10-2005 08:06 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome